Resolve "problems" identified by vscode

Signed-off-by: Jonathon Anderson <janderson@ciq.com>

internal/pkg/kernel/kernel_test.go

@@ -177,12 +177,12 @@ func Test_FindAllKernels(t *testing.T) {
 	}{
 		"two images": {
 			files: map[string][]string{
-				"image1": []string{
+				"image1": {
 					"/boot/vmlinuz-5.14.0-427.18.1.el9_4.x86_64",
 					"/boot/vmlinuz-5.14.0-427.24.1.el9_4.x86_64",
 					"/boot/vmlinuz-4.14.0-427.18.1.el8_4.x86_64",
 				},
-				"image2": []string{
+				"image2": {
 					"/boot/vmlinuz-0-rescue-eb46964329b146e39518c625feab3ea0",
 					"/boot/vmlinuz-5.14.0-362.24.1.el9_3.aarch64",
 					"/boot/vmlinuz-5.14.0-427.31.1.el9_4.aarch64+debug",

internal/pkg/util/util.go

@@ -6,7 +6,6 @@ import (
 	"crypto/sha256"
 	"encoding/hex"
 	"fmt"
-	"gopkg.in/yaml.v3"
 	"io"
 	"io/fs"
 	"net"
@@ -19,6 +18,8 @@ import (
 	"syscall"
 	"time"
 
+	"gopkg.in/yaml.v3"
+
 	"github.com/warewulf/warewulf/internal/pkg/wwlog"
 )